CN204059985U - A kind of plain type concrete distributing device - Google Patents
A kind of plain type concrete distributing device Download PDFInfo
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- CN204059985U CN204059985U CN201420573805.0U CN201420573805U CN204059985U CN 204059985 U CN204059985 U CN 204059985U CN 201420573805 U CN201420573805 U CN 201420573805U CN 204059985 U CN204059985 U CN 204059985U
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- hoop body
- semicircle hoop
- semicircle
- concrete
- discharging opening
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Abstract
The utility model discloses a kind of plain type concrete distributing device, comprise concrete placing boom and the outlet of concrete placing boom bottom is carried out to the switch controlling device of switch control rule, the outlet of concrete placing boom bottom is concrete discharging opening; Switch controlling device comprises the front band be installed on concrete discharging opening, be arranged on the lower catch hoop below front band and concrete discharging opening is carried out to the plugging plate of shutoff; Lower catch hoop is formed by the 3rd semicircle hoop body and the 4th semicircle hoop body make-up, and plugging plate is to be fixedly mounted on bottom shutoff hoop body and can with the flat board of shutoff hoop body left rotation and right rotation, and shutoff hoop body is the 3rd semicircle hoop body or the 4th semicircle hoop body; Lower sealing ring and plugging plate form the cylindric seal head be sleeved on below concrete discharging opening, and shutoff hoop body and plugging plate form the flashboard of cylindric seal head.The utility model structure simple, reasonable in design and use easy and simple to handle, result of use good, can the concrete discharging process of easy, effective control boom.
Description
Technical field
The utility model belongs to Concrete Pumping Construction technical field, is specifically related to a kind of plain type concrete distributing device.
Background technology
Concrete distributing device is the end-equipment of pumping of concrete, and its effect is delivered to by pipeline by institute's pump pressure concrete need build in the forming panel of component.At present, the concrete distributing device adopted comprises material distributing machine and boom, wherein material distributing machine is equipped with boom, when carrying out cloth by concrete distributing device, general is all adopt boom to carry out cloth, and comparatively simple and its upper end of existing boom structure is connected with concrete pump pipe.
During practice of construction, there is following problem in existing boom: the first, during high and low strength concrete local mixing, aberration is larger: nowadays, the frame-shear-wall structure of engineering design is generally strong column and weak beam, in strong column and weak beam structure, wall column is different from the strength grade of concrete of beam slab, sometimes wall column differs four to five grades with the strength grade of concrete of beam slab, in order to ensure the concrete appearance effect of wall column and beam slab joint, most of engineering all adopts wall column beam slab formwork, the concrete construction technology of primary concreting.Actual when carrying out concreting, adopt concrete distributing device, first build the concrete (namely first concrete pouring construction being carried out to wall column) of high strength grade, water the concrete (namely, concrete pouring construction being carried out to beam slab) of low-intensity grade again, in concreting process, outlet because of concrete placing boom will be built another strong concrete of a movement from a strong concrete incessantly and be built a little, and after all strong concretes are built and a little all built, carry out low strength concrete again and build a construction, like this in boom moving process, strong concrete easily falls in low strength concrete casting area by concrete placing boom outlet, and not easy to clean, thus cause height, low strength concrete is in local mixing phenomenon together, exist high after stripping, low concrete color is inconsistent, the phenomenons such as aberration is larger, and the region that aberration is larger mainly occurs in beam slab bottom surface.The second, weak concrete is strayed into high-grade concrete district: due to the difference of constructed concrete structure form, may exist in work progress and build the concrete situation of multiple varying strength, constructor may due to unconsciously operate miss, in transportable concrete boom process, low strength concrete is caused to shed into strong concrete region, unmanned cleaning again, thus the serious consequence causing strong concrete region concrete strength to reduce, thus need the randomness controlling the discharging of boom discharge outlet concrete.Three, a large amount of concrete can be caused in boom moving process to shed waste, this is advocating green construction with country, is reducing the construction requirement of building waste and disagree.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of plain type concrete distributing device is provided, its structure simple, reasonable in design and use easy and simple to handle, result of use good, can the concrete discharging process of easy, effective control boom.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of plain type concrete distributing device, it is characterized in that: comprise concrete placing boom and the outlet of concrete placing boom bottom is carried out to the switch controlling device of switch control rule, the outlet of described concrete placing boom bottom is concrete discharging opening, and described switch controlling device is arranged on described concrete discharging opening and it is positioned at below described concrete discharging opening; Described switch controlling device comprises the front band be installed on described concrete discharging opening, be arranged on the lower catch hoop below described front band and be arranged on described lower catch hoop and described concrete discharging opening carried out to the plugging plate of shutoff, described plugging plate is positioned at immediately below described concrete discharging opening, and described front band and described lower catch hoop are annular hoop body and the two is all laid in coaxial with described concrete discharging opening; Described front band is formed by the first semicircle hoop body and the second semicircle hoop body make-up, and described first semicircle hoop body and the second semicircle hoop body are laid at grade and the two composition adapter sleeve is loaded on the upper collar below concrete placing boom; Described lower catch hoop is formed by the 3rd semicircle hoop body and the 4th semicircle hoop body make-up, and described 3rd semicircle hoop body and the 4th semicircle hoop body are laid at grade and the lower sealing ring of the two composition on described between the collar and plugging plate; Described plugging plate is to be fixedly mounted on bottom shutoff hoop body and can to carry out the flat board of left rotation and right rotation with described shutoff hoop body, and described shutoff hoop body is the 3rd semicircle hoop body or the 4th semicircle hoop body; One end of described 3rd semicircle hoop body is hinged end and its other end is held for being flexibly connected, one end of described 4th semicircle hoop body be hinged end and its other end for being flexibly connected end, is connected in hinged way between described 3rd semicircle hoop body and the hinged end of the 4th semicircle hoop body and between the two flexible connection end, passes through the second removable connector and connect; Described lower sealing ring and plugging plate form the cylindric seal head be sleeved on below described concrete discharging opening, the flashboard of described shutoff hoop body and the described cylindric seal head of plugging plate composition.
Above-mentioned a kind of plain type concrete distributing device, is characterized in that: the bottom level of the described upper collar is not less than the bottom level of described concrete discharging opening.
Above-mentioned a kind of plain type concrete distributing device, is characterized in that: the internal diameter of described lower sealing ring is identical with the internal diameter of the described upper collar.
Above-mentioned a kind of plain type concrete distributing device, it is characterized in that: one end of described first semicircle hoop body is hinged end and its other end is held for being flexibly connected, one end of described second semicircle hoop body be hinged end and its other end for being flexibly connected end, is connected in hinged way between described first semicircle hoop body and the hinged end of the second semicircle hoop body and between the two flexible connection end, passes through the first removable connector and connect.
Above-mentioned a kind of plain type concrete distributing device, it is characterized in that: described first semicircle hoop body is connected by the first jointed shaft with between the hinged end of the second semicircle hoop body, described 3rd semicircle hoop body is connected by the second jointed shaft with between the hinged end of the 4th semicircle hoop body.
Above-mentioned a kind of plain type concrete distributing device, it is characterized in that: the hinged seat installed for the first jointed shaft is all installed outside the hinged end of described first semicircle hoop body and the second semicircle hoop body, the hinged seat installed for the second jointed shaft is all installed outside the hinged end of described 3rd semicircle hoop body and the 4th semicircle hoop body.
Above-mentioned a kind of plain type concrete distributing device, it is characterized in that: described first removable connector is the first connecting bolt, outside the flexible connection end of described first semicircle hoop body and outside the flexible connection end of the second semicircle hoop body, be provided with the bolt mount pad for the first connecting bolt installation; Described second removable connector is the second connecting bolt, is provided with the bolt mount pad for the second connecting bolt installation outside the flexible connection end of described 3rd semicircle hoop body and outside the flexible connection end of the 4th semicircle hoop body.
Above-mentioned a kind of plain type concrete distributing device, it is characterized in that: described 3rd semicircle hoop body to be fixedly mounted on immediately below the second semicircle hoop body and therebetween for being tightly connected, described shutoff hoop body is the 4th semicircle hoop body, and described plugging plate to be fixedly mounted on below the 4th semicircle hoop body and therebetween for being tightly connected.
Above-mentioned a kind of plain type concrete distributing device, it is characterized in that: described switch controlling device is hand switch control device or distance type switch controlling device, described distance type switch controlling device also comprises the described flashboard of drive and carries out the folding driving mechanism of left rotation and right rotation, the driving governor described folding driving mechanism being carried out to drived control and the remote controller controlled described folding driving mechanism around the second jointed shaft, is in transmission connection between described folding driving mechanism and described flashboard by transmission mechanism; Described folding driving mechanism is electric driving mechanism, and described driving governor connects with described electric driving mechanism, and described remote controller communicates with described driving governor with communication.
Above-mentioned a kind of plain type concrete distributing device, is characterized in that: the cross section of described first semicircle hoop body, the second semicircle hoop body, the 3rd semicircle hoop body and the 4th semicircle hoop body is circular arc.
The utility model compared with prior art has the following advantages:
1, structure is simple, reasonable in design and input cost is lower.
2, easy and simple to handle and use procedure safety, reliable is used.
3, the switch controlling device structure adopted is simple, processing and fabricating and install and lay convenient and result of use is good, primarily of the front band on the concrete discharging opening be installed on bottom boom, be arranged on the lower catch hoop below front band and be arranged on lower catch hoop and concrete discharging opening carried out to the plugging plate composition of shutoff, wherein lower catch hoop and plugging plate form the cylindric seal head be sleeved on below concrete discharging opening, and shutoff hoop body and plugging plate form the flashboard of cylindric seal head.During actual use, only front band fastener need be contained on the concrete discharging opening bottom boom, in boom moving process, close flashboard, in time arriving casting position, open flashboard again, like this can the concrete discharging of easy, effective control.
4, the switch controlling device adopted uses flexible operation mode, both can adopt manual mode, and also can adopt remote control mode.
5, result of use is good and practical value is high, can effectively prevent concrete from trickling down everywhere, effectively to solve when existing boom moves that the use operation manually using metal bucket or woven bag to connect to exist in unrestrained Concrete at discharging opening is inconvenient, dangerous, the problems such as concrete is trickled down greatly, easily appear missing in labour intensity.Meanwhile, concrete in boom moving process, can not be caused to shed, waste, and the concrete structure quality of institute's construction molding is easy to ensure.
In sum, the utility model structure simple, reasonable in design and use easy and simple to handle, result of use good, can the concrete discharging process of easy, effective control boom.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is using state reference diagram of the present utility model.
Fig. 2 is the structural representation of the utility model switch controlling device.
Fig. 3 is the deployed condition schematic diagram of the utility model switch controlling device.
Fig. 4 is the installation position schematic diagram of four semicircle hoop bodies in the utility model switch controlling device.
Description of reference numerals:
1-concrete placing boom; The semicircle hoop body of 2-1-the first; The semicircle hoop body of 2-2-the second;
The semicircle hoop body of 2-3-three; The semicircle hoop body of 2-4-four; 2-5-plugging plate;
2-6-the first jointed shaft; 2-7-the second jointed shaft; 2-8-the first connecting bolt;
2-9-the second connecting bolt.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the utility model comprises concrete placing boom 1 and the outlet of concrete placing boom 1 bottom is carried out to the switch controlling device of switch control rule, the outlet of described concrete placing boom 1 bottom is concrete discharging opening, and described switch controlling device is arranged on described concrete discharging opening and it is positioned at below described concrete discharging opening.Described switch controlling device comprises the front band be installed on described concrete discharging opening, be arranged on the lower catch hoop below described front band and be arranged on described lower catch hoop and described concrete discharging opening carried out to the plugging plate 2-5 of shutoff, described plugging plate 2-5 is positioned at immediately below described concrete discharging opening, and described front band and described lower catch hoop are annular hoop body and the two is all laid in coaxial with described concrete discharging opening.Described front band is formed by the first semicircle hoop body 2-1 and the second semicircle hoop body 2-2 make-up, and described first semicircle hoop body 2-1 and the second semicircle hoop body 2-2 lays at grade and the two composition adapter sleeve is loaded on the upper collar below concrete placing boom 1.Described lower catch hoop is formed by the 3rd semicircle hoop body 2-3 and the 4th semicircle hoop body 2-4 make-up, and described 3rd semicircle hoop body 2-3 and the 4th semicircle hoop body 2-4 lays at grade and the lower sealing ring of the two composition on described between the collar and plugging plate 2-5; Described plugging plate 2-5 to be fixedly mounted on bottom shutoff hoop body and can to carry out the flat board of left rotation and right rotation with described shutoff hoop body, and described shutoff hoop body is the 3rd semicircle hoop body 2-3 or the 4th semicircle hoop body 2-4.One end of described 3rd semicircle hoop body 2-3 is hinged end and its other end is held for being flexibly connected, one end of described 4th semicircle hoop body 2-4 be hinged end and its other end for being flexibly connected end, is connected in hinged way between described 3rd semicircle hoop body 2-3 and the hinged end of the 4th semicircle hoop body 2-4 and between the two flexible connection end, passes through the second removable connector and connect.Described lower sealing ring and plugging plate 2-5 form the cylindric seal head be sleeved on below described concrete discharging opening, and described shutoff hoop body and plugging plate 2-5 form the flashboard of described cylindric seal head.
During actual use, the bottom level of the described upper collar is not less than the bottom level of described concrete discharging opening.In the present embodiment, the bottom level of the described upper collar is identical with the bottom level of described concrete discharging opening.
In the present embodiment, the internal diameter of described lower sealing ring is identical with the internal diameter of the described upper collar.
One end of described first semicircle hoop body 2-1 is hinged end and its other end is held for being flexibly connected, one end of described second semicircle hoop body 2-2 be hinged end and its other end for being flexibly connected end, is connected in hinged way between described first semicircle hoop body 2-1 and the hinged end of the second semicircle hoop body 2-2 and between the two flexible connection end, passes through the first removable connector and connect.
Composition graphs 3, Fig. 4, described first semicircle hoop body 2-1 is connected by the first jointed shaft 2-6 with between the hinged end of the second semicircle hoop body 2-2, and described 3rd semicircle hoop body 2-3 is connected by the second jointed shaft 2-7 with between the hinged end of the 4th semicircle hoop body 2-4.Actually add man-hour, the hinged seat installed for the first jointed shaft 2-6 is all installed outside the hinged end of described first semicircle hoop body 2-1 and the second semicircle hoop body 2-2, the hinged seat installed for the second jointed shaft 2-7 is all installed outside the hinged end of described 3rd semicircle hoop body 2-3 and the 4th semicircle hoop body 2-4.
In the present embodiment, described first removable connector is the first connecting bolt 2-8, is provided with the bolt mount pad for the first connecting bolt 2-8 installation outside the flexible connection end of described first semicircle hoop body 2-1 and outside the flexible connection end of the second semicircle hoop body 2-2; Described second removable connector is the second connecting bolt 2-9, is provided with the bolt mount pad for the second connecting bolt 2-9 installation outside the flexible connection end of described 3rd semicircle hoop body 2-3 and outside the flexible connection end of the 4th semicircle hoop body 2-4.
During actual installation, described first connecting bolt 2-8 is parallel laying with the second connecting bolt 2-9, and described first jointed shaft 2-6 is parallel laying with the second jointed shaft 2-7, and the first connecting bolt 2-8 and the first jointed shaft 2-6 is vertical runs.
In the present embodiment, described 3rd semicircle hoop body 2-3 to be fixedly mounted on immediately below the second semicircle hoop body 2-2 and therebetween for being tightly connected, described shutoff hoop body is that the 4th semicircle hoop body 2-4, described plugging plate 2-5 to be fixedly mounted on below the 4th semicircle hoop body 2-4 and therebetween for being tightly connected.
In the present embodiment, one end of described second connecting bolt 2-9 is fixedly mounted on outside the flexible connection end of the 3rd semicircle hoop body 2-3, and one end of described first connecting bolt 2-8 is fixedly mounted on outside the flexible connection end of the second semicircle hoop body 2-2.
In the present embodiment, described switch controlling device is hand switch control device.
During actual use, described switch controlling device also can be distance type switch controlling device, described distance type switch controlling device also comprises the described flashboard of drive and carries out the folding driving mechanism of left rotation and right rotation, the driving governor described folding driving mechanism being carried out to drived control and the remote controller controlled described folding driving mechanism around the second jointed shaft 2-7, is in transmission connection between described folding driving mechanism and described flashboard by transmission mechanism; Described folding driving mechanism is electric driving mechanism, and described driving governor connects with described electric driving mechanism, and described remote controller communicates with described driving governor with communication.Described electric driving mechanism is drive motors, and described driving governor is the electric machine controller connected with described drive motors.During actual installation, described electric driving mechanism is arranged on the lateral wall of the first semicircle hoop body 2-1, the second semicircle hoop body 2-2 or the 3rd semicircle hoop body 2-3.
In the present embodiment, the cross section of described first semicircle hoop body 2-1, the second semicircle hoop body 2-2, the 3rd semicircle hoop body 2-3 and the 4th semicircle hoop body 2-4 is circular arc.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. a plain type concrete distributing device, it is characterized in that: comprise concrete placing boom (1) and the outlet of concrete placing boom (1) bottom is carried out to the switch controlling device of switch control rule, the outlet of described concrete placing boom (1) bottom is concrete discharging opening, and described switch controlling device is arranged on described concrete discharging opening and it is positioned at below described concrete discharging opening; Described switch controlling device comprises the front band be installed on described concrete discharging opening, be arranged on the lower catch hoop below described front band and be arranged on described lower catch hoop and described concrete discharging opening carried out to the plugging plate (2-5) of shutoff, described plugging plate (2-5) is positioned at immediately below described concrete discharging opening, and described front band and described lower catch hoop are annular hoop body and the two is all laid in coaxial with described concrete discharging opening; Described front band is formed by the first semicircle hoop body (2-1) and the second semicircle hoop body (2-2) make-up, and described first semicircle hoop body (2-1) and the second semicircle hoop body (2-2) are laid at grade and the two forms the upper collar that adapter sleeve is loaded on concrete placing boom (1) below; Described lower catch hoop is formed by the 3rd semicircle hoop body (2-3) and the 4th semicircle hoop body (2-4) make-up, and described 3rd semicircle hoop body (2-3) and the 4th semicircle hoop body (2-4) lay at grade and the two forms the lower sealing ring be positioned between the described upper collar and plugging plate (2-5); Described plugging plate (2-5) is for be fixedly mounted on bottom shutoff hoop body and can to carry out the flat board of left rotation and right rotation with described shutoff hoop body, and described shutoff hoop body is the 3rd semicircle hoop body (2-3) or the 4th semicircle hoop body (2-4); One end of described 3rd semicircle hoop body (2-3) is hinged end and its other end is held for being flexibly connected, one end of described 4th semicircle hoop body (2-4) be hinged end and its other end for being flexibly connected end, be connected in hinged way between described 3rd semicircle hoop body (2-3) and the hinged end of the 4th semicircle hoop body (2-4) and between the two flexible connection end, pass through the second removable connector and connect; Described lower sealing ring and plugging plate (2-5) form the cylindric seal head be sleeved on below described concrete discharging opening, and described shutoff hoop body and plugging plate (2-5) form the flashboard of described cylindric seal head.
2. according to a kind of plain type concrete distributing device according to claim 1, it is characterized in that: the bottom level of the described upper collar is not less than the bottom level of described concrete discharging opening.
3. according to a kind of plain type concrete distributing device described in claim 1 or 2, it is characterized in that: the internal diameter of described lower sealing ring is identical with the internal diameter of the described upper collar.
4. according to a kind of plain type concrete distributing device described in claim 1 or 2, it is characterized in that: one end of described first semicircle hoop body (2-1) is hinged end and its other end is held for being flexibly connected, one end of described second semicircle hoop body (2-2) be hinged end and its other end for being flexibly connected end, be connected in hinged way between described first semicircle hoop body (2-1) and the hinged end of the second semicircle hoop body (2-2) and between the two flexible connection end, pass through the first removable connector and connect.
5. according to a kind of plain type concrete distributing device according to claim 4, it is characterized in that: be connected by the first jointed shaft (2-6) between described first semicircle hoop body (2-1) and the hinged end of the second semicircle hoop body (2-2), be connected by the second jointed shaft (2-7) between described 3rd semicircle hoop body (2-3) and the hinged end of the 4th semicircle hoop body (2-4).
6. according to a kind of plain type concrete distributing device according to claim 5, it is characterized in that: outside described first semicircle hoop body (2-1) and the hinged end of the second semicircle hoop body (2-2), the hinged seat installed for the first jointed shaft (2-6) is all installed, outside described 3rd semicircle hoop body (2-3) and the hinged end of the 4th semicircle hoop body (2-4), the hinged seat installed for the second jointed shaft (2-7) is all installed.
7. according to a kind of plain type concrete distributing device according to claim 4, it is characterized in that: described first removable connector is the first connecting bolt (2-8), outside the flexible connection end of described first semicircle hoop body (2-1) with outside the flexible connection end of the second semicircle hoop body (2-2), be provided with the bolt mount pad installed for the first connecting bolt (2-8); Described second removable connector is the second connecting bolt (2-9), is provided with the bolt mount pad installed for the second connecting bolt (2-9) outside the flexible connection end of described 3rd semicircle hoop body (2-3) with outside the flexible connection end of the 4th semicircle hoop body (2-4).
8. according to a kind of plain type concrete distributing device described in claim 1 or 2, it is characterized in that: described 3rd semicircle hoop body (2-3) to be fixedly mounted on immediately below the second semicircle hoop body (2-2) and therebetween for being tightly connected, described shutoff hoop body is the 4th semicircle hoop body (2-4), described plugging plate (2-5) be fixedly mounted on the 4th semicircle hoop body (2-4) below and therebetween for being tightly connected.
9. according to a kind of plain type concrete distributing device described in claim 1 or 2, it is characterized in that: described switch controlling device is hand switch control device or distance type switch controlling device, described distance type switch controlling device also comprises the described flashboard of drive and carries out the folding driving mechanism of left rotation and right rotation, the driving governor described folding driving mechanism being carried out to drived control and the remote controller controlled described folding driving mechanism around the second jointed shaft (2-7), is in transmission connection between described folding driving mechanism and described flashboard by transmission mechanism; Described folding driving mechanism is electric driving mechanism, and described driving governor connects with described electric driving mechanism, and described remote controller communicates with described driving governor with communication.
10. according to a kind of plain type concrete distributing device described in claim 1 or 2, it is characterized in that: the cross section of described first semicircle hoop body (2-1), the second semicircle hoop body (2-2), the 3rd semicircle hoop body (2-3) and the 4th semicircle hoop body (2-4) is circular arc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420573805.0U CN204059985U (en) | 2014-09-30 | 2014-09-30 | A kind of plain type concrete distributing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420573805.0U CN204059985U (en) | 2014-09-30 | 2014-09-30 | A kind of plain type concrete distributing device |
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| CN204059985U true CN204059985U (en) | 2014-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595009A (en) * | 2018-12-17 | 2019-04-09 | 中国葛洲坝集团第工程有限公司 | Pump concrete entrance hole sealing device and its method for sealing |
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2014
- 2014-09-30 CN CN201420573805.0U patent/CN204059985U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595009A (en) * | 2018-12-17 | 2019-04-09 | 中国葛洲坝集团第工程有限公司 | Pump concrete entrance hole sealing device and its method for sealing |
| CN109595009B (en) * | 2018-12-17 | 2023-12-26 | 中国葛洲坝集团第一工程有限公司 | Hole sealing device and hole sealing method for pumped concrete inlet |
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Address after: 710003 No. 199, North Main Street, Shaanxi, Xi'an Patentee after: SHAANXI CONSTRUCTION ENGINEERING GROUP Corp.,Ltd. Address before: 710003 No. 199, North Main Street, Shaanxi, Xi'an Patentee before: SHAANXI CONSTRUCTION ENGINEERING Group Corp. Address after: 710003 No. 199, North Main Street, Shaanxi, Xi'an Patentee after: Shaanxi Construction Engineering Group Co.,Ltd. Address before: 710003 No. 199, North Main Street, Shaanxi, Xi'an Patentee before: SHAANXI CONSTRUCTION ENGINEERING GROUP Corp.,Ltd. |